Heating element, atomization assembly and atomization device

Abstract

The utility model provides a heating element, an atomization assembly and an atomization device, and relates to the technical field of electronic atomization, the heating element is used for heating and atomizing an aerosol matrix in the atomization device, the heating element comprises a heating mesh and at least two pins connected with the heating mesh, and the pins are connected with the heating mesh through welding spots and welding wires. The heating element combines the advantages of the spot welding process and the wire welding process, the overall heat input during welding can be balanced, the probability of current concentration at the welding position is reduced, the risk of local overheating at the welding position is reduced, the welding consistency is improved, and the heating element can provide more uniform current distribution; and the overall welding strength can be improved, so that the mechanical strength and stability of the heating element are better, the deformation probability of the heating element is reduced, the reliability of the heating element is further improved, the heating element has better comprehensive performance, and the overall quality of the heating element is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic atomization, in particular to a heating element, an atomization assembly and an atomization device. BACKGROUND

[0002] The heating core is the core element of the atomization assembly. According to the form, the heating core can be mainly divided into spring wires and mesh heating wires. The mesh heating wire is generally prepared by connecting a mesh sheet and a pin by using a welding process. The welding process currently used in the mesh heating wire makes the welding quality of the mesh heating wire prepared by welding poor, which affects the performance of the mesh heating wire and further affects the reliability of the atomization assembly, thereby causing the risk of reducing the user experience. CONTENT OF THE UTILITY MODEL

[0003] The purpose of the embodiments of the present application is to provide a heating element, an atomization assembly and an atomization device, which can improve the welding quality and the reliability of the product.

[0004] In one aspect of the embodiments of the present application, a heating element is provided, which is used for heating an aerosol substrate in an atomization device, and includes a heating mesh and at least two pins connected to the heating mesh, wherein the pin and the heating mesh are connected by a welding point and a welding line.

[0005] In one embodiment, the heating mesh includes a heating part and a conductive part. The heating part includes a plurality of periodically arranged mesh hole units, and a plurality of the mesh hole units form at least two heating lines in the length direction of the heating mesh. The conductive part is oppositely arranged on both sides of the heating part along the width direction of the heating mesh, and the welding point and the welding line are connected between the conductive part on the corresponding side and the pin.

[0006] In one embodiment, along the width direction, the width of the conductive part is greater than or equal to the width of the pin.

[0007] In one embodiment, the welding point, the welding line, the pin and the conductive part are collinear along the central axis in the length direction.

[0008] In one embodiment, the welding point and the welding line are a plurality of, and the welding point and the welding line are alternately arranged at intervals.

[0009] In one embodiment, the interval between adjacent welding points and welding lines is 0.8mm-1.2mm.

[0010] In one embodiment, the diameter of the welding point is 0.06mm-0.15mm; and / or, the welding seam length of the welding line along the length direction is 1mm-1.5mm, and the welding seam width of the welding line along the width direction is 0.06mm-0.15mm.

[0011] In one embodiment, the material of the welding spot and the welding line both comprises a nickel-chromium alloy or a nickel-titanium alloy.

[0012] In another aspect of the embodiments of the present application, an atomization assembly is provided, comprising a liquid guide and the heating element as described above, wherein the heating element is arranged on the inner side or the outer side of the liquid guide, or the heating element is embedded in the liquid guide.

[0013] In yet another aspect of the embodiments of the present application, an atomization device is provided, comprising the atomization assembly as described above and a power supply assembly, wherein the power supply assembly is electrically connected with the atomization assembly.

[0014] The heating element, the atomization assembly and the atomization device provided by the embodiments of the present application are used for heating an aerosol substrate in an atomization device. The heating element adopts a welding method combining spot welding and wire welding, which combines the advantages of both spot welding and wire welding and avoids the defects of single spot welding or single wire welding. The implementation process of spot welding is relatively simple. Through spot welding, the welding of the key area can be quickly positioned, and then combined with wire welding, the strict requirements for the overall welding parameters are reduced. Through spot welding, heat is locally applied between the conductive part and the pin. Spot welding can reduce the overall heat input, making the heat management of welding easier. When wire welding is performed, the heat affected zone of the welding area will be smaller, reducing the risk of material deformation. Spot welding also provides preliminary welding strength and stability. Subsequent wire welding can be performed on the basis of spot welding, reducing the strict dependence on the initial welding quality. In this way, even if there are small defects in spot welding, wire welding can still provide compensation, reducing the overall welding risk. Moreover, since spot welding can provide multiple welding spots, there is a certain fault tolerance in positioning, and subsequent wire welding can compensate for local welding deviations, enhancing the overall welding fault tolerance. The present application adopts a spot welding and wire welding phased welding method, making the implementation of the process more flexible, reducing the strict requirements for heat input and welding quality, improving the success rate of welding, and making the combination process of wire welding and spot welding more practical, especially suitable for welding scenarios of thin materials that require high reliability.

[0015] By welding the heating element in a combination of welding spots and welding lines, the overall heat input during welding can be balanced, reducing the probability of current concentration at the welding position and the risk of local overheating at the welding position, improving the consistency of welding, and enabling the heating element to provide more uniform current distribution. It can also improve the overall welding strength, making the mechanical strength and stability of the heating element better, reducing the deformation probability of the heating element, and thus improving the reliability of the heating element, enabling the heating element to have better overall performance and ensuring the overall quality of the heating element. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments of the present application. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be regarded as a limitation to the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0017] Figure 1A is one of the schematic diagrams of the heating element structure provided by the present embodiment;

[0018] Figure 1B is the second schematic diagram of the heating element structure provided by the present embodiment;

[0019] Figure 2A is one of the schematic diagrams of the heating element and the existing single-point welding, single-wire welding temperature comparison provided by the present embodiment;

[0020] Figure 2B is the second schematic diagram of the heating element and the existing single-point welding, single-wire welding temperature comparison provided by the present embodiment;

[0021] Figure 3A is one of the schematic diagrams of the heating element and the existing single-point welding, single-wire welding power density comparison provided by the present embodiment;

[0022] Figure 3B is the schematic diagram of the heating element and the existing single-point welding, single-wire welding current density comparison provided by the present embodiment;

[0023] Figure 4A is one of the schematic diagrams of the heating element and the existing single-point welding, single-wire welding stress comparison provided by the present embodiment;

[0024] Figure 4B is the second schematic diagram of the heating element and the existing single-point welding, single-wire welding stress comparison provided by the present embodiment;

[0025] Figure 5A is the observation diagram of the heating element under the optical microscope provided by the present embodiment;

[0026] Figure 5B is the observation diagram of the heating element under the industrial camera provided by the present embodiment.

[0027] Icon: 10-heating mesh; 11-conductive part; 12-heating part; 120-mesh unit; 121-heating line; 20-pin; 31-welding spot; 32-welding line; L-length direction; D-width direction; t-pitch; d-welding seam width; L1-welding seam length. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described in the description of the present application in combination with the accompanying drawings in the embodiments of the present application.

[0029] In the description of the present application, it should be noted that the positions or location relationships indicated by the terms "in", "out", etc. are based on the positions or location relationships shown in the drawings or the positions or location relationships in which the products of the present application are usually placed, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular position, be constructed and operated in a particular position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", etc. are only used for differentiation and cannot be understood as indicating or implying relative importance.

[0030] It should also be noted that, unless otherwise explicitly specified and limited, the terms "set", "connected" should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be directly connected, or indirectly connected through an intermediate medium, or can be connected inside two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0031] Please refer to Figure 1A , Figure 1B The present application provides a heating element for heating an aerosol substrate in an atomization device, which comprises a heating mesh 10 and at least two pins 20 connected to the heating mesh 10, the pins 20 being connected to the heating mesh 10 through welding points 31 and welding lines 32.

[0032] The heating mesh 10 comprises a heating portion 12 and a conductive portion 11, the heating portion 12 comprises a plurality of periodically arranged mesh hole units 120, and the plurality of mesh hole units 120 form at least two heating lines 121 in the length direction L of the heating mesh 10; the conductive portion 11 is arranged on both sides of the heating portion 12 along the width direction D of the heating mesh 10, and the welding points 31 and the welding lines 32 are connected between the conductive portion 11 on the corresponding side and the pins 20.

[0033] The pins 20 are connected to the conductive portions 11 on both sides of the heating mesh 10 through a welding process, one end of the pin 20 is connected to the positive and negative poles of the battery of the power supply assembly for work. When the heating mesh 10 works, the current of the battery is introduced into the conductive portion 11 of the heating mesh 10 through the pin 20, and then introduced into the heating portion 12 from the conductive portion 11. The heating lines 121 of the heating portion 12 supply current, so that the heating portion 12 generates heat after the current acts on it to heat the atomization liquid, thereby generating mist.

[0034] In some embodiments, the material of the heating mesh 10 includes at least one of iron-chromium-aluminum alloy, nickel-chromium alloy, nickel-chromium-iron alloy, nickel-iron alloy, silver alloy, copper alloy; and the material of the pin 20 can be at least one of nickel, gold, silver, platinum, nickel-chromium-iron alloy, nickel-chromium alloy, iron-chromium-aluminum alloy; the material combination of the heating mesh 10 and the pin 20 can be set according to specific needs.

[0035] In the present application, the pin 20 and the conductive part 11 of the heating mesh 10 are connected through the welding spots 31 and the welding lines 32, so that the pin 20 and the heating mesh 10 form an integrated structure.

[0036] In some embodiments, the conductive part 11 of the heating mesh 10 and the pin 20 are usually welded by using nickel-chromium alloy (NiCr) or nickel-titanium alloy (NiTi) material to form the welding spots 31 and the welding lines 32 between the conductive part 11 of the heating mesh 10 and the pin 20. When the nickel-chromium alloy (NiCr) or the nickel-titanium alloy (NiTi) is selected for welding, these two materials have good electrical conductivity and corrosion resistance, and can form a stable welding layer between the conductive part 11 of the heating mesh 10 and the pin 20, so as to make the heating element maintain good electrical conductivity and durability, and ensure the working performance of the heating element.

[0037] As mentioned above, the pin 20 and the conductive part 11 of the heating mesh 10 are connected through the welding spots 31 and the welding lines 32 in the present application, in other words, the pin 20 and the conductive part 11 are welded by using the combination of spot welding and line welding, so as to improve the reliability of the heating element.

[0038] When the spot welding is used alone, the spot welding mainly relies on the welding spots 31 formed at local positions to realize the connection between the pin 20 and the heating mesh 10. Due to the limited number of the welding spots 31, when the current passes through the welding spots 31, there can be a non-uniform current distribution, which can easily cause some welding spots 31 to bear too much current, while other welding spots 31 can have insufficient current. The non-uniform current distribution can affect the overall heating effect of the heating mesh 10, leading to uneven heating of the heating mesh 10, and can also cause excessive temperature at the welding spots 31 to result in carbon deposition and burnt smell, thereby affecting the user experience. The spot welding alone can also cause insufficient mechanical strength at the welding spots 31, because the mechanical strength of the spot welding depends on the number of the welding spots 31 and the strength of the welding spots 31. In the welding process, the two materials are rapidly melted by the high energy of the laser to realize metallurgical bonding. The welding spots 31 are far apart from each other, and can be subjected to mechanical impact or vibration during the use of the atomization device. The welding spots 31 can be broken or loose, thereby causing the failure of the heating mesh 10.

[0039] Compared with spot welding alone, single line welding performs well in current distribution and welding strength, but also has its shortcomings, mainly in that, first, the process complexity is high: the line welding process is more complex than spot welding. Line welding usually requires uniform heat input and appropriate welding speed to ensure the quality of the weld, which increases the complexity of operation and requires higher equipment and operator requirements. In mass production, the complexity of the line welding process may reduce production efficiency and increase the risk of errors in the production process. Second, it is difficult to ensure welding consistency: although line welding can cover a larger welding area, the consistency of line welding is still a challenge during the continuous welding process on the heating mesh 10, as temperature and pressure may fluctuate at different locations, resulting in uneven line welding quality. Such inconsistency may cause the local resistance of the line welding position to increase, thereby affecting the service life of the heating mesh 10. Third, the heat-affected zone is large: line welding applies a large amount of heat to the material during the welding process, thereby forming a large heat-affected zone on the material, which may cause thermal deformation of the material, welding stress concentration, and even local annealing or embrittlement of the material; especially when welding some sensitive materials, a larger heat-affected zone may cause a decline in material performance, affecting the reliability of the final product. Fourth, the area of the weld is large during line welding, which may easily lead to excessive heavy metal precipitation, and there is a health risk to the operator and the user of the final product.

[0040] Therefore, the heating element provided by the embodiments of the present application adopts a welding method combining spot welding and line welding, which combines the advantages of both spot welding and line welding processes and avoids the defects of single spot welding or single line welding. The implementation process of spot welding is relatively simple, and spot welding can quickly locate the welding of the key area, and then line welding is combined to reduce the strict requirements for the overall welding parameters. Spot welding can reduce the overall heat input by locally applying heat between the conductive part 11 and the pin 20, making the heat management of welding easier. The heat-affected zone of the welding area during line welding will be smaller, reducing the risk of material deformation. Spot welding also provides preliminary welding strength and stability, and subsequent line welding can be performed based on spot welding, reducing the strict dependence on the initial welding quality. In this way, even if there are small defects in spot welding, line welding can still provide compensation, reducing the overall welding risk. Moreover, since spot welding can provide multiple welding points 31, there is a certain fault tolerance in positioning, and subsequent line welding can compensate for local welding deviations, enhancing the overall welding fault tolerance. The present application adopts a spot welding and line welding phased welding method, making the process implementation more flexible, reducing the strict requirements for heat input and welding quality, improving the success rate of welding, and making the combined process of line welding and spot welding more practical, especially suitable for welding scenarios of thin materials that require high reliability.

[0041] Correspondingly, the heating element is welded by the combination of the welding spots 31 and the welding lines 32, which can balance the overall heat input during welding, reduce the risk of local overheating of the welding position, improve the consistency of welding, and make the heating element provide more uniform current distribution; it can also improve the overall welding strength, so that the mechanical strength and stability of the heating element are better, the deformation probability of the heating element is reduced, and the reliability of the heating element is improved, so that the heating element has better comprehensive performance, and the overall quality of the heating element is ensured.

[0042] Specifically, laser welding, laser spot welding and laser line welding can be combined in one welding process during welding, which can realize the high precision of laser spot welding and the continuity of laser line welding, and make the current distribution on the heating element more uniform, reduce local overheating and current concentration, and improve the working stability and efficiency of the heating element.

[0043] Further, the pin 20 is connected to the conductive part 11 through the welding spots 31 and the welding lines 32, so that the width of the conductive part 11 is greater than or equal to the width of the pin 20 in the width direction D, so that the pin 20 can be completely welded on the conductive part 11 in the width direction D, and the pin 20 can be stably connected to the conductive part 11.

[0044] In some embodiments, the welding spots 31, the welding spots 31, the welding lines 32, the pins 20 and the conductive part 11 are collinear along the central axis S of the length direction L; that is, the welding spots 31, the welding lines 32 and the pins 20 are located at the middle position of the conductive part 11 in the width direction D. In this way, after the conductive part 11 and the pin 20 are welded, the stability of the welding of the pin 20 and the conductive part 11 can be enhanced, and the appearance of the welded heating element can be more beautiful.

[0045] In addition, when the pins 20 and the conductive part 11 are connected by the welding spots 31 and the welding lines 32, the welding spots 31 and the welding lines 32 are multiple, and the welding spots 31 and the welding lines 32 are alternately arranged.

[0046] As shown in Figure 1B The adjacent side of the welding spot 31 is the welding line 32, and the adjacent side of the welding line 32 is the welding spot 31, which are alternately arranged, and the welding spot 31 is used for positioning welding, and the welding line 32 is used for stable welding, which can improve the positioning accuracy of welding and the strength of welding.

[0047] When solder joints 31 and solder wires 32 are spaced apart, the spacing t between adjacent solder joints 31 and solder wires 32 is 0.8mm to 1.2mm. The spacing t reflects the density of solder joints 31 and solder wires 32. It can ensure the welding strength while avoiding excessive heat impact on the heating element caused by overly dense solder joints 31 and solder wires 32, which could lead to deformation of the heating element. At the same time, it is also necessary to avoid the situation where sparse solder joints 31 and solder wires 32 are insufficient to ensure the welding strength.

[0048] Generally, the solder joint 31 is circular or elliptical, and the diameter of the circular solder joint 31 is between 0.06 mm and 0.15 mm. When the solder joint 31 is elliptical, this diameter can be used as the diameter of the minor axis of the ellipse.

[0049] The weld length L1 of the weld line 32 along the length direction L is 1mm to 1.5mm, and the weld width d of the weld line 32 along the width direction D is 0.06mm to 0.15mm. The weld width d of the weld line 32 is basically the same as the diameter of the weld point 31 to ensure the aesthetics of the weld point 31 and the weld line 32.

[0050] The above parameters are set based on the premise of reasonable distribution of solder joints 31 and weld lines 32, so as not to make the size of solder joints 31 and weld lines 32 too large or too dense, while ensuring the overall welding quality.

[0051] The following compares the application of individual spot welding, individual wire welding, and the combined spot welding and wire welding process of this application to heating elements:

[0052] like Figure 2A , Figure 2B As shown in the figure, and in conjunction with Table 1, at the start of welding 0.01 seconds, as... Figure 2A As shown, the heating area at the welded end of the four-spot heating wire formed by individual spot welding is higher than that of the other two schemes, while the heating area at the welded end of the heating wire formed by wire welding and the combination of spot welding and wire welding is not significantly different; as time increases to 0.1S, as Figure 2B As shown, it is evident that in the traditional four-slot structure, structural reinforcement is only applied between the upper and lower solder points. The upper and lower solder points experience low current flow and high equivalent contact resistance, with the current primarily flowing through the two middle solder points. This results in high local current density, high power, and significant heat generation, making it easier for heat to diffuse to the welding position and leading to substantial heat loss. In contrast, the welding effects of wire welding and the combination of spot welding and wire welding are significantly better than the four-slot solution. Although the difference in welding effect is small, it demonstrates that wire welding and spot welding / wire welding methods have lower equivalent contact resistance and lower average power, resulting in less heat loss at the soldering points and more concentrated heat generated by the heating mesh on the heating element 12.

[0053] Table 1

[0054] Average Four spot Wire bond Spot + wire bond 0.01 S temperature (deg C) 43.5 30 29 0.1 S temperature (deg C) 102 43 41

[0055] Referring back to Figure 3A , Figure 3B and Table 2, it can be seen that the four-point welding scheme has a greater power density in the welding area than the other two schemes, and because of the greater power density, it generates more heat and is more likely to cause heat loss; the wire welding and spot welding + wire welding effectively avoid this situation and can effectively reduce heat loss, thereby improving the heating efficiency.

[0056] Table 2

[0057] Average Four spot Wire bond Spot + wire bond Power density (W / m 3 ) 7E9 0.71E9 0.65E9 Current density (A / m 3 )]]> 1.92E8 0.77E8 0.78E8

[0058] Referring to Figure 4A , Figure 4B and Table 3, comparing the above three schemes, at the initial 0.01S of welding, as Figure 4A , the stress at the welding end of the four-spot welding scheme is greater than that of the other two schemes; as the time increases to 0.1S, as Figure 4B , it can be seen that the entire welding section in the four-spot welding scheme already has stress distribution, while the other two schemes only have stress distribution in the current passing area. Comparing the wire welding and spot welding + wire welding schemes, the stress distribution of the two schemes is not much different.

[0059] Table 3

[0060] Average Four spot Wire bond Spot + wire bond 0.01 S stress (N / m 2 )] 0.2E8 0.04E8 0.05E8 0.1 S stress (N / m 2 )] 1.11E8 0.75E8 0.53E8

[0061] From the above comparison, it can be seen that the spot welding combined with wire welding method adopted by the present application is obviously superior to the effect of single spot welding in terms of heating efficiency, stress distribution, etc.; although it is not much different from the effect of single wire welding, but in combination with the defects of single wire welding mentioned above, the present application combines the advantages of spot welding and wire welding, so that the heating element prepared by combining spot welding and wire welding has better comprehensive performance and cost performance than the single wire welding scheme, and the reliability of the heating element is guaranteed.

[0062] On the other hand, the heating element of the present application is mainly prepared by the following steps:

[0063] Step 200: Place the pin 20 and the heating mesh 10 on the jig for positioning.

[0064] Step 201: Focus using the imaging technology provided by the welding equipment, and position the conductive part 11 of the pin 20 and the heating mesh 10.

[0065] Step 202: Draw a spot welding and wire welding pattern on the welding software.

[0066] As mentioned above, the spot welding is mainly performed by using the welding spots 31 with a diameter of 0.06mm-0.15mm; the line welding covers the whole contact area between the conductive part 11 of the heating mesh 10 and the pin 20, and the welding line 32 is mainly located in the area where the conductive part 11 of the heating mesh 10 passes through the current, and the welding spots 31 play a role in positioning and strengthening the welding strength of the connection between the conductive part 11 of the heating mesh 10 and the pin 20.

[0067] Step 203: After the pattern is drawn, the welding area is positioned.

[0068] Step 204: The laser parameters are adjusted.

[0069] The laser welding can be adopted, and the welding is performed according to the parameters in Table 4 as follows.

[0070] Table 4

[0071]

[0072] Step 205: The protective atmosphere (argon) is opened, and the laser welding is performed.

[0073] Step 206: The welding quality is observed under an optical microscope or an industrial camera.

[0074] Figure 5A The welding surface quality under the optical microscope is shown, Figure 5B The welding surface quality under the industrial camera is shown; it can be seen that, after the welding process of the present application is adopted, the welding surface of the heating element is smooth and continuous, and the welding quality is good.

[0075] On this basis, the embodiment of the present application further discloses an atomization assembly, which comprises a liquid guide body and the heating element according to any one of the above, and the heating element is arranged on the inner side or the outer side of the liquid guide body, or the heating element is embedded in the liquid guide body.

[0076] The liquid guide body is used for guiding the atomization liquid stored in the oil storage cavity, and in use, the atomization liquid flows into the heating element of the atomization assembly, the heating part 12 of the heating element heats to atomize the atomization liquid, and the mist is inhaled by the user through the atomization channel and the suction nozzle.

[0077] In addition, the embodiment of the present application further discloses an atomization device, which comprises the atomization assembly and a power supply assembly, and the power supply assembly is electrically connected with the atomization assembly.

[0078] The power supply assembly is used for supplying power to the atomization device, and specifically, the pin 20 is connected with the battery of the power supply assembly, so that the current is introduced into the conductive part 11 and the heating part 12 of the heating mesh 10 through the pin 20, the heating part 12 generates heat to heat the atomization liquid, and then generates the mist.

[0079] The atomizing assembly and the atomizing device contain the same structure and advantages as the heating element in the foregoing embodiments. The structure and advantages of the heating element have been described in detail in the foregoing embodiments, which will not be described here again.

[0080] The above only describes the embodiments of the present application and is not used to limit the protection scope of the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A heating element for heating an aerosol-generating substrate in an atomisation device, the heating element comprising: The application relates to a heating element and an atomization assembly. The heating element comprises a heating net and at least two pins connected with the heating net through welding points and welding lines.

2. A heat generating element according to claim 1, characterised in that The heating net comprises a heating part and a conductive part, the heating part comprises a plurality of periodically arranged mesh units, and a plurality of the mesh units form at least two heating lines in the length direction of the heating net; the conductive part is oppositely arranged on both sides of the heating part along the width direction of the heating net, and the welding points and the welding lines are connected between the conductive parts on the corresponding sides and the pins.

3. A heat generating element according to claim 2, characterised in that In the width direction, the width of the conductive part is greater than or equal to the width of the pin.

4. The heat-generating element according to claim 2, characterized in that The middle axis of the welding points, the welding lines, the pins and the conductive part is collinear in the length direction.

5. A heat generating element according to any one of claims 1 to 4, characterised in that, The welding points and the welding lines are alternately arranged at intervals.

6. A heat-generating element according to claim 5, characterised in that The interval between the adjacent welding points and the welding lines is 0.8-1.2 mm.

7. A heat generating element according to any one of claims 2 to 4, characterised in that, The diameter of the welding points is 0.06-0.15 mm; and / or the welding length of the welding lines in the length direction is 1-1.5 mm, and the welding width of the welding lines in the width direction is 0.06-0.15 mm.

8. A heat generating element according to any one of claims 1 to 4, characterised in that, The materials of the welding points and the welding lines both comprise nickel-chromium alloy or nickel-titanium alloy.

9. An atomising assembly characterised in that, The application relates to a heating element and an atomization assembly.

10. An atomising device characterised in that, The application relates to a heating element and an atomization assembly.

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